Automatic stop for talking-machines.



J. KOHN. AUTOMATIC STOP FOR TALKING MACHINES. APPLICATIONYPILED 1320.29, 191s.A

4 Patented Aug. l1, 1914.

y OFFICE.

JUI'IIUS KOEN.l 0F BRIDGEPORT, CONNECTICUT.

AUTOMATIC STOP FOR TALKING-MACHINES.

Specification of Letters Yatent.

Patented Aug. 11, 1914.

Application led December `2t,`1913?,. Serial No. 809,244.

This invention relates to certain lew and useful improvements in automatic stops for talking' machines, and .the obJect of the ur vention is to provide a brake and operating'.

mechanism therefor which will be positive in all its actions, insuring its proper operation and the stopping of the record at the proper time. l

t is a further -object of the invention to provide such a device which will be simple in its construction and operation, which can be manufacturedat a comparatively small cost, and which can he readily attached' to any of the usual well known types of talking machines.

With the above and other objects in view, the invention resides in the novel construction, combination, and arrangement of parts as will be hereinafter more fully described and then claimed, and in describing the in'- vention in detail, reference will he had to the accompanying drawing forming a part of: this spe'cififntion. and wherein like numerals of reference will be employed to designate like ,parts tl'n'oughout the several views, in which Figure 1 is a top plan view of a talkingl machine or phonograph partly broken away showing my invention applied thereto. Fig. 2 is a top plan view of the brake mechanism on an enlarged scale, a ivortion of the pho nograph boi: and record beingr shown` Fig 3 is a View in side elevation of the brake and itsl operatingr mechanism, the supporting arm for the sound reproducer being in transverse section. Fig. 4 is an enlarged detail view of a portion 0f the brake mechanism partly in section, and Fig. 5 is a transverse vertical sectional view takenon the line of Fig. 2 with part of the brake mechanism removed.'

ln the accompanying drawings I have illustrated the preferred embodiment of .my invention, and have shown the same applied to a talking machine of a well known type, and comprising a motor casing 10 upon which, as is wellknowu, is a rotatable support (not shown) which carries a central -pin 11 by which the record 12 is centered on such rotatable support. The sound rcproducer 14 is carried on an arm 15 and is usually pivotally supported by a bracket on one side ci thc motor casing. The parts thus i'ar described are all of an ordinary and well known form.

The brake mechanism comprises a disk or plate 16 which is secured on top of the motor casing' 10 on the side adjacent t0 the pivoted end of the arm 15. This plate is preferably mounted on a cushion 17, usually made of rubber, the .securing screws 18 extending through-lmth the plate 16 and the cushion 17 into the top of thc motor casing 10. This cushion is of a thickness which will elevate the plate 16 to such a point as will ,permit the brake to engage the periphery of therccord, .f will hereinf after more 'fullyappean Pivot-.ed at 19 centrally of the plate or disk 16 is a lever 20, having a setting arm 21 at one end and a brake carrying arm 22 at the other end, both oi these arms lying in planes above the plane of the lever 20. The setting' arm 21 is preferably provided on its free end with a button 23, this arm extending at 'right angles to the lever 20, while the arui 22 is providednear its frcc cud with an aperture through which extends a shaft or rod 24 carrying a brake 25 ou its outer end. This rod or shaft 24 at its other end extends through a swivelcd support 2G and surrounding the rod or shaft between said support 2G and the arm 22 is a coiled spring 27.

0n the plate 16 is a 'pair of spaced standards or lugs 2S in which is pivotally mounted a latch 29 having at oneI end a` hook 30 to engagcwith the lever 2() and with which it. is normally'hcld in engagement by a spring 3l. clincd surface 32 adapted to be engaged by a linger 33 clamped on the arm 15.

ln operation, as the reproduccr 14 approaches the end of the record, the movement ofthe arm 15 abouiI its pivotal center will cause the finger 33 to engage and ride upon the inclined surface 32 of the latch 29, releasing` the hook 30 vfrom engagement, with the lever 20, allowing'spring 27 to exert its tension against arn'r22, which will causelthe lever 20 to swing on its pivot l!) until the brake 25 is thrustagggainst the periphery of the record 12, Where it is held by the tension of spring 27. To reset the device, it is merely necessary to press on button 23, which again throws lever underneathv 'dog 30,

s ring 31 actin to engage the dog 30 with t e lever 20 an hold the device in set posi tion, or in other words, with the brake block removed from the periphery of the' record 12. In order to impart the necessary movement to the parts quickl when the end of' the record has been reac ed, I have shown the record 1 2l as provided with a oove 34 extending inward from the end of t e record, and described about a center other thanthe 4 1 center of the record, thus causing the reproducmg device and the arm to be carried inward quickly 'when the end of the record has I4been reached.

-While I have shown and 'described one J f 'form of my invention, it will be understood that this form hasbeen chosen for the purpose of illustration only, and that I do not l wish to be limited to the details and con- 'v struction shown and described, as obvious modifications will occur to those skilled in the art.' .23

v Havin thus fully described my invention, what Ic aim as new and desire to secure by Letters Patent is 1; In brake mechanism 'for talking machines, the combination with a rotating member and a traveling member, of a pivotallymounted lever having a setting arm at one end and a brake arm at-its other end, a swiveled support, a rod extending through said support and through said brake-arm, a brake on one end of said rod, a spring surrounding the rod, a spring-controlled latch brake arm, a spring-pressed rod extending through said brake arm, a spring on sai(J rod, a brake on one end of said rod, a springpressed latchhaving a hook at one end to engage said lever, and beveled at its opposite end, and a finger carried by said travelinlr melnberadapted to contact with the bevcle end of said latch to release thc latch from said lever.

In testimony whereof I aiiix my signature in presence of two witnesses.

JULIUS KOHN. Witnesses:

FRANK Szncsr, Parnu Koninns. 

